A high voltage distribution system is typically at which of the following voltages?

A high voltage distribution system is typically at which of the following voltages?

• A. 6,930 volts
• B. 4,160 volts
• C. 12,000 volts
• D. 2,400 volts

Answer: (C)

Distribution networks use standard voltage levels to move power from substations to local transformers. A common high-voltage distribution feeder voltage is twelve thousand volts, which provides a good balance between keeping line losses down and using equipment that is practical to insulate and protect. From these feeders, transformers reduce the voltage further for residential and commercial use. The other voltages listed are used in different contexts or for lower-voltage distribution, not the typical high-voltage distribution level found on most utilities’ feeders.

Distribution networks use standard voltage levels to move power from substations to local transformers. A common high-voltage distribution feeder voltage is twelve thousand volts, which provides a good balance between keeping line losses down and using equipment that is practical to insulate and protect. From these feeders, transformers reduce the voltage further for residential and commercial use. The other voltages listed are used in different contexts or for lower-voltage distribution, not the typical high-voltage distribution level found on most utilities’ feeders.